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// --------------------------------------------------------------------------
// OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2013.
//
// This software is released under a three-clause BSD license:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of any author or any participating institution
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
// --------------------------------------------------------------------------
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
// INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// --------------------------------------------------------------------------
// $Maintainer: Johannes Junker $
// $Authors: Johannes Junker $
// --------------------------------------------------------------------------
#include <OpenMS/VISUAL/TOPPASTreeView.h>
#include <OpenMS/DATASTRUCTURES/String.h>
#include <QtGui/QDrag>
#include <QtGui/QApplication>
#include <QtCore/QMimeData>
#include <iostream>
using namespace std;
namespace OpenMS
{
TOPPASTreeView::TOPPASTreeView(QWidget * parent) :
QTreeWidget(parent)
{
// we drag by ourselves:
setDragEnabled(false);
}
TOPPASTreeView::~TOPPASTreeView()
{
}
void TOPPASTreeView::mousePressEvent(QMouseEvent * event)
{
QTreeWidget::mousePressEvent(event);
if (event->button() == Qt::LeftButton)
{
drag_start_pos_ = event->pos();
}
}
void TOPPASTreeView::mouseMoveEvent(QMouseEvent * event)
{
QTreeWidget::mouseMoveEvent(event);
if (!(event->buttons() & Qt::LeftButton))
{
return;
}
if ((event->pos() - drag_start_pos_).manhattanLength() < QApplication::startDragDistance())
{
return;
}
if (currentItem() && currentItem()->childCount() > 0)
{
// drag item is a category or a tool with types - one of the types must be selected
return;
}
QDrag * drag = new QDrag(this);
QMimeData * mime_data = new QMimeData;
mime_data->setText(currentItem()->text(0));
drag->setMimeData(mime_data);
// start drag
drag->exec(Qt::CopyAction);
}
void TOPPASTreeView::keyPressEvent(QKeyEvent * e)
{
QTreeWidget::keyPressEvent(e);
if (currentItem() && e->key() == Qt::Key_Return)
{
e->accept();
emit itemDoubleClicked(currentItem(), 0);
}
else
{
e->ignore();
}
}
void TOPPASTreeView::enterEvent(QEvent * /*e*/)
{
setFocus();
}
void TOPPASTreeView::leaveEvent(QEvent * /*e*/)
{
}
} //namespace OpenMS
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